@article{eab9ae5c8dda4cfea7d5d6053031be36,
title = "Tunable magnetization dynamics in artificial spin ice via shape anisotropy modification",
abstract = "Ferromagnetic resonance (FMR) is performed on kagome artificial spin ice (ASI) formed of disconnected Ni80Fe20 nanowires. Here we break the threefold angular symmetry of the kagome lattice by altering the coercive field of each sublattice via shape anisotropy modification. This allows for distinct high-frequency responses when a magnetic field is aligned along each sublattice and additionally enables simultaneous spin-wave resonances to be excited in all nanowire sublattices, unachievable in conventional kagome ASI. The different coercive field of each sublattice allows selective magnetic switching via global field, unlocking novel microstates inaccessible in homogeneous-nanowire ASI. The distinct spin-wave spectra of these states are detected experimentally via FMR and linked to underlying microstates using micromagnetic simulation.",
author = "T. Dion and Arroo, {D. M.} and K. Yamanoi and T. Kimura and Gartside, {J. C.} and Cohen, {L. F.} and H. Kurebayashi and Branford, {W. R.}",
note = "Funding Information: T.D. was supported by the EPSRC Centre for Doctoral Training in Advanced Characterisation of Materials (Grant No. EP/L015277/1). W.R.B. and J.C.G. acknowledge funding from the Leverhulme grant (Grant No. RPG-2017-257). T.K. acknowledges that this work is supported by JSPS Strategic Young Researcher Overseas Visits Program for Accelerating Brain Circulation. L.F.C. acknowledges funding from the Leverhulme grant (No. RPG-2016-306). The simulation work and analysis was supported via Imperial College Research Computing Service [39] . Funding Information: T.D. was supported by the EPSRC Centre for Doctoral Training in Advanced Characterisation of Materials (Grant No. EP/L015277/1). W.R.B. and J.C.G. acknowledge funding from the Leverhulme grant (Grant No. RPG-2017-257). T.K. acknowledges that this work is supported by JSPS Strategic Young Researcher Overseas Visits Program for Accelerating Brain Circulation. L.F.C. acknowledges funding from the Leverhulme grant (No. RPG-2016-306). The simulation work and analysis was supported via Imperial College Research Computing Service. Publisher Copyright: {\textcopyright} 2019 American Physical Society. {\textcopyright}2019 American Physical Society.",
year = "2019",
month = aug,
day = "23",
doi = "10.1103/PhysRevB.100.054433",
language = "English",
volume = "100",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "5",
}